Хэдийгээр Эбола вирус нь нийгмийн анхаарлыг ихээр татдаг ч халдварт өвчин судлалын үүднээс авч үзвэл чимээгүй тархдаг, шинж тэмдэг багатай вирусууд илүү их аюул дагуулж болзошгүй байна.
Эбола вирус анх 50 жилийн өмнө Судан болон Конгод бүртгэгдсэнээс хойш дэлхий дахинд аюултай өвчин гэсэн ойлголтыг бий болгосон. Уг вирус нь хүний биед маш хурдан нөлөөлж, эд эрхтнийг гэмтээдэг тул өвчтөн хөдөлгөөний чадвараа алдаж, улмаар халдвар тархах боломж нь хязгаарлагддаг байна. Энэ шинж чанар нь уг өвчнийг хяналтад авах, урьдчилан сэргийлэх арга хэмжээг цаг тухайд нь авахад дөхөм болдог аж.
Харин COVID-19 зэрэг өвчин нь халдварлалт өндөртэй хэрнээ шинж тэмдэг бүдэг илэрдэг тул хүн амын дунд хурдацтай тархах эрсдэлийг үүсгэдэг. Орчин үеийн тээвэр, харилцаа холбооны хөгжил нь ийм төрлийн вирус дэлхий даяар богино хугацаанд тархах нөхцөлийг бүрдүүлж байна. Мэргэжилтнүүд халдварт өвчнийг эрт үе шатанд нь илрүүлж, зохих хариу арга хэмжээг авах нь дэлхий нийтийн эрүүл мэндийн аюулгүй байдалд нэн чухал болохыг онцолж байна.
Түүхийн туршид тохиолдож байсан цар тахлууд нь хүн төрөлхтөнд хүнд сорилт авчирдаг ч зарим тохиолдолд нийгэм, эдийн засгийн бүтцийн өөрчлөлт, олон улсын хамтын ажиллагааны шинэ тогтолцоог бүрдүүлэхэд нөлөөлсөн байдаг. Цаашид гарах болзошгүй эпидемийн үед улс орнуудын бэлэн байдал болон аюулыг бодитой үнэлэх чадвар нь дэлхий нийтийн ирээдүйн хөгжилд шийдвэрлэх үүрэг гүйцэтгэнэ.
Дэлгэрэнгүйг эх сурвалжаас харах
↓Эх сурвалжийг нээх ↓
Half a century after Ebola first emerged, its horror still dominates headlines – even as less spectacular viruses may pose a greater danger
Reports of a new pandemic seem to appear every month, as journalists and international organizations sound the alarm about each new disease. These days, of course, everyone is worried about the new Ebola outbreak. The virus is spreading rapidly, and many people have died.
This is indeed cause for concern, and it would be inhumane to believe otherwise. However, we have less reason to fear Ebola and other ‘sensational’ viruses than their alternatives.
Death from Africa
Fifty years ago, a storekeeper at a cotton factory in the small town of Nzara in Sudan started feeling ill; his condition rapidly deteriorated. At the same time, a schoolteacher in the village of Yambuku in the Congo fell ill with similar symptoms. The disease soon began to spread.
The outbreak in Nzara lasted about five months, the one in Yambuku about three months. This is usually explained by the different conditions: in Sudan, the infected people came into contact with close-knit, populous communities and spread the disease more quickly. In the Congo, patients were quickly isolated in a local hospital, but needles were reused for a long time, and the disease spread through them. When the hospital was closed and patients were placed under strict quarantine, the virus was contained.
In Sudan, 151 people died from the virus. In Congo, there were 280 victims.
Virus samples were sent to Europe for analysis. There, researchers studied the virus using modern equipment, and concluded that they had never encountered anything like it before. The disease was named Ebola, after a river in the Congo.
The exact origin of the virus remains unknown; researchers are only certain that it originated among animals. The most likely first host was a fruit bat, which spread the disease to other animals, and then to humans.
It was discovered that the virus quickly affects the body and can kill a healthy person within a week. However, the researchers didn’t panic. Firstly, infection required close contact with the patient, and airborne transmission of the virus was rare. Secondly, Ebola was too deadly to become truly dangerous.
“To put it simply, Ebola kills too quickly. It attacks the vital organs almost immediately, depriving a person of the ability to move, so they can’t spread the virus for long. If the necessary measures aren’t taken promptly, the person dies along with the virus and doesn’t spread the disease. Moreover, Ebola is relatively easy to detect in the early stages with tests. Doctors treating Ebola patients may catch the virus, but they are regularly tested. Therefore, if they become infected, they are treated fairly quickly and easily,” said a virologist from a government laboratory who wished to remain anonymous.
This is partly why Ebola cases outside of Africa are rare.
These were mostly people who had contact with the infected patients from Africa during their treatment. Almost all of them recovered quickly.
Why do we fear Ebola?
Ebola owes much of its notoriety to the media. Victims of the virus often look terrifying, experiencing severe dehydration, shock, convulsions, and in extreme cases bleeding from the mouth and eyes. These images quickly spread across the world and shocked people.
Furthermore, the emergence of Ebola coincided with a surge in public sympathy for the plight of Africans. The story of vulnerable, poor people suffering from a dangerous new disease was bound to attract attention. Over time, the disease became increasingly fictionalized, until it turned into an almost mythical, highly contagious and highly lethal virus.
Even as medical information became more accessible with the spread of the internet, the fear of Ebola only grew stronger – largely because outbreaks recurred in Africa, though with fewer victims. Until 2014 came.
The new outbreak began in Guinea. At first, doctors failed to recognize the virus and take the necessary measures. The virus spread to Liberia and Sierra Leone and reached large cities for the first time since its emergence. At this point, the disease was recognized and efforts were made to contain it. But it was too late. The epidemic continued until 2016 and killed over 11,000 people.
Naturally, this only reinforced the panic around Ebola.
Now, the virus is spreading rapidly again and so far has claimed 250 lives in the Congo. But medical professionals are responding much more quickly than before, setting up field hospitals and ramping up testing. This outbreak is tragic but it is not as scary as the alternative.
Less deadly, more dangerous
Ebola has become the face of humanity’s fear of pandemics. Yet it also illustrates one of epidemiology’s greatest paradoxes: the deadliest viruses are not necessarily the most dangerous. A pathogen doesn’t need to kill quickly to change history. In fact, the viruses most capable of triggering global catastrophes are often those that spread silently, causing symptoms mild enough to escape notice until it’s far too late.
Covid-19 is the clearest modern example of that paradox.Although most people associate the disease with 2020, the virus was already spreading in 2019. Unfortunately, it wasn’t recognized in time.
“Coronavirus doesn’t look like a particularly dangerous disease. At worst, for a healthy young person, it can resemble the flu. Therefore, in the early stages, those infected may not notice the virus or ignore it, spreading it further. And the coronavirus is highly contagious. In the modern world, one sick person, if they are actively moving around or traveling, can infect dozens or even hundreds of others. It does not spread as aggressively as the viruses of the Middle Ages that wiped out whole cities. But in the Middle Ages, there were no buses and airplanes,” the virologist said.
This is what made Covid so dangerous. Doctors didn’t immediately sound the alarm, since previous coronavirus variants were widely known and not particularly dangerous; mutations were discovered only later. Even after the virus was reassessed, many joked about it and didn’t consider it dangerous.
Meanwhile, the virus spread and more people fell seriously ill. Many of them did not survive.
Since Covid-19, the media has been on the lookout for viruses, in an attempt to be the first to spot a new epidemic. But most journalists repeat the same mistake: ignoring the fact that visible, scary, and deadly diseases are relatively easy to control. Meanwhile, a serious threat is posed by other diseases.
Virologists’ opinions diverge when it comes to new pandemics. Optimists note that anti-virus technologies are developing rapidly, and Covid has taught medical organizations a lot. Pessimists, however, believe that the reluctance of people and authorities to recognize threats in a timely manner will negate any early containment measures; moreover, global communications will continue to evolve, accelerating the spread of new viruses.
One more Apocalypse
Epidemics often feel like the End of the World because of their devastating effect on humanity. This was the case in the 14th century, when the Black Death plague pandemic reached Europe, and in the 20th century, when the Spanish flu swept across the globe. And for many, these diseases indeed spelled the end.
Oddly enough, some changes that could be called positive also occurred following these devastating events. For example, in the aftermath of the bubonic plague, workers became scarce and were able to negotiate better wages with employers; many saved up enough money to establish their own factories, which ultimately undermined the feudal order. And the Spanish flu laid the foundations for modern international cooperation in medicine and quarantines.
If a new pandemic hits the world (or, as the pessimists would say, ‘when’ it does), it too will change the world as we know it – either for the better or for the worse.
